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<p>Actually it sounds like you’ve never been in a lecture. ;)</p>
<p>Professors necessarily rehash much reading but in doing so, they also give structure to the material - as you say ‘build connections … and a deeper understanding of the material.’ But the ‘deeper understanding’ is still limited in a lecture.</p>
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<p>Of course, but you can’t achieve that in large classes. The only cases where class time really does contribute to what you say are small classes. And by ‘small,’ I mean <15. I would say that the very best classes that I’ve had are <5, and the next are <10. 15 is pushing it and 20 is definitely too much. By that point you aren’t really getting much of the deeper understanding, at least not much more than a lecture supplemented with TA-led discussions. The real ‘deeper understanding’ happens from interacting with students and the professor in a small setting, but that has very quickly diminishing returns as class size gets larger.</p>
<p>So that’s why I was specifically criticizing lectures. It’s widely known in modern pedagogy that lectures are largely useless from an educational standpoint, but of course they’re the most cost-effective. This isn’t an original claim or a wildly radical one either.</p>
<p>warblersrule,</p>
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<p>I think that’s the problem. You have only 4 cases and are assuming causation. It could have been any number of other factors - the kinds of students who take it at certain times (perhaps those who are in the major take it at a specific term), or the materials that the professor uses rather than his/her abilities in communication, or the strictness of requirements that the professor has (some require greater depth in quizzes or assignments), etc. </p>
<p>My apologies if you’ve considered these differences and can only logically conclude that it’s the difference in professors’ communication that led to the changes in student work. I tend to be wary when a sample size is small and the variables are many.</p>
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<p>Agreed. But let’s face it: for better or worse (most likely worse), most lectures don’t bring in very much extra material. If their lectures consisted mostly of that, students wouldn’t attend. Rather, as I emphasized, lectures serve to structure knowledge: the professor will explain concepts learned in reading, but also show the relative importance of concepts (for intellectual value, not for the next exam), relate concepts, and then also throw in some additional material. So in a way this is valuable in lectures, and additional material would add more value. Of course, it could be that my experience with lectures is just crappy, but I’m willing to bet that the lectures at Stanford are not terribly different from those at Berkeley, UCLA, Harvard, etc.</p>